---
title: "ICD-10-CM H66.3X2: Other chronic suppurative otitis media… | BillingBrief"
description: "ICD-10-CM code H66.3X2: Other chronic suppurative otitis media, left ear. Category, related codes, and the official source, in plain English."
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---

# H66.3X2 Other chronic suppurative otitis media, left ear

ICD-10-CM · [CMS code reference](#source)

**Official ICD-10-CM description:** Other chronic suppurative otitis media, left ear

## Coding notes

From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.

### Includes

-   suppurative and unspecified otitis media with myringitis

### Excludes1

Not coded together with this code. The exception is when the two conditions are unrelated to each other.

-   tuberculous otitis media (A18.6)

### Use additional code

Add a second code for the following, when documented.

-   code for any associated perforated tympanic membrane (H72.-)
-   code to identify:
-   exposure to environmental tobacco smoke (Z77.22)
-   exposure to tobacco smoke in the perinatal period (P96.81)
-   history of tobacco dependence ([Z87.891](https://billingbrief.com/icd10/z87.891/))
-   occupational exposure to environmental tobacco smoke (Z57.31)
-   tobacco dependence (F17.-)
-   tobacco use ([Z72.0](https://billingbrief.com/icd10/z72.0/))

## Related codes

-   [`H66.21` Chronic atticoantral suppurative otitis media, right ear ICD-10-CM](https://billingbrief.com/icd10/h66.21/)
-   [`H66.22` Chronic atticoantral suppurative otitis media, left ear ICD-10-CM](https://billingbrief.com/icd10/h66.22/)
-   [`H66.23` Chronic atticoantral suppurative otitis media, bilateral ICD-10-CM](https://billingbrief.com/icd10/h66.23/)
-   [`H66.3X1` Other chronic suppurative otitis media, right ear ICD-10-CM](https://billingbrief.com/icd10/h66.3x1/)
-   [`H66.3X3` Other chronic suppurative otitis media, bilateral ICD-10-CM](https://billingbrief.com/icd10/h66.3x3/)
-   [`H66.3X9` Other chronic suppurative otitis media, unspecified ear ICD-10-CM](https://billingbrief.com/icd10/h66.3x9/)
-   [`H66.40` Suppurative otitis media, unspecified, unspecified ear ICD-10-CM](https://billingbrief.com/icd10/h66.40/)
-   [`H66.41` Suppurative otitis media, unspecified, right ear ICD-10-CM](https://billingbrief.com/icd10/h66.41/)

## Common questions

### Is H66.3X2 a billable code?

Yes. H66.3X2 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

## From the source

Official description from [CMS](https://www.cms.gov/medicare/coding-billing/icd-10-codes).
ICD-10-CM FY2027 (effective October 1, 2026).

Code set

ICD-10-CM

Category

H66 Suppurative and unspecified otitis media

Chapter

Diseases of the ear and mastoid process

Billable

Yes

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. [About BillingBrief and our sources](https://billingbrief.com/about/).